2 Hobbies and intrests Computers Linux, Free Software projects (elas), Webdesign Reading Intrest in Asimov, Tolkien, Douglas Adams,... General Co-founder and Chairman of Orions2 VZW (www.orions2.org) Coordinator LETS Geel (Local Exchange and Trading System)
3 Guy Van Sanden - Skillsheet Nieuwe baan Laakdal Operating Systems Linux (Ubuntu, RHEL, Debian, SuSE, Fedora,...) FreeBSD / OpenBSD Solaris HP-UX Basics AIX Basics Windows NT/2000/XP Security Firewalls (Linux Iptables, Ipcop, Smoothwall,...) PKI/OpenPGP Password security/cracking LDAP/Kerberos Virtualization RHEV (Red Hat virtualization) KVM Xen VMWare Networking Apache (1&2) Webserver Apache Tomcat Mailserver: Postfix, Exim, Sendmail DNS server: BIND and djbdns SMB Samba (www.samba.org) POP3 & IMAP (Dovecot, Cyrus and UW-IMAP) MySQL / Postgress Monitoring: Zabbix, Nagios, ZenOSS Writing Zabbix & Nagios plugins Internet HTML CSS CMS (Drupal, Joomla) PHP Groupware Zarafa Zimbra Citadel Configuration Rational ClearCase Management Subversion, Bazaar & Git System Management Puppet CFEngine Bug Tracking Bugzilla Redmine Backup Bacula Amanda Basics Programming Unix Shell scripting Perl SQL PHP Databases MySQL Postgres Others RODOS (Realtime Online Decision Support System) Torque PBS Cluster management
4 Guy Van Sanden - Experience Nieuwe baan Laakdal July 2009 now: Freelance writer for Linux Identity magazine Linux Identity is a printed magazine that is distributed worldwide. It covers a wide range of topics and distributions and is geared towards both end-users as Linux administrators. May 2008 now: elas Free Software project elas is a webapplications to manage LETS (Local Exchange and Trading System) groups. It was written in PHP with a MySQL backend and has a rich AJAX based interface. ELAS installations can be coupled through a SOAP interface. More information can be found on the elas website: Ubuntu Linux, Apache2, MySQL, PHP, SOAP, AJAX, Mailman, Bind, Postfix,... Oktober 2009 June 2011: Open-Future Kortenberg Open-Future is a company founded in 2009 that is dedicated to Open Source solutions. It has strategic partnerships with names like Red Hat, Zarafa, Puppet and Bacula Senior Open Source Consultant, project manager Ubuntu Linux, RHEL5&6, CentOS, LVM, Clustering, Zarafa groupware, Zimbra, Puppet, Zabbix, Bacula, Xen, KVM, RHEV, VMWare.. January 2008 September 2009: X-Tend Grimbergen X-Tend is part of the Cronos IT group and focuses on Linux and Open Source solutions for customers. Senior Linux Consultant Ubuntu Linux, RedHat, CentOS, LVM, Clustering, Zarafa groupware, Zimbra,... August 2004 January 2008: Studiecentrum voor Kernenergie (SCKCEN) MOL The SCKCEN is the Belgian Nuclear Research Center (government funded and controlled). It does research in the nuclear area, but also into Decision Strategy and related information systems. SCK-CEN has a Linux Beowulf computing cluster with over 100 nodes. This cluster is used to simulate long-term nuclear reactions that help scientists in many ways, allowing them to plan ahead thousands of years for the effects of nuclear emergencies as well as building complete simulated research reactors. This project was initially started to build a virtual model of the next-generation Myhrra reactor.
5 It was my job to keep the cluster running, to plan and implement cluster expansions and to support all programs that ran on it (mostly nuclear codes coming from high profile institutes like Los Alamos). In addition, I managed several smaller Linux and Unix systems ranging from Apache webservers to Decision Support Systems. Some projects include: Development of an automated system to exchange DSS data in case of emergencies Set up of the RODOS DSS system Migration of RODOS from HP-Unix to Linux Set up of a secondary Linux cluster to migrate to new software versions without downtime Set up of several websites under European collaboration projects Beowulf cluster system administrator, Linux system administrator Debian, SuSE Linux, Apache2, Postfix, Torque PBS, MPI, Nagios February 2003 August 2003: Rhodix Unix Professionals Eindhoven NL Rhodix Unix Professionals is a firm that sells and supports Sun Unix products and provides several specialized services for this platform. From the offices in Eindhoven, the client systems are proactively monitorred and managed over a secure connection. Rhodix customers include many of the Dutch utility companies like Obragas and Nutsmaas. Remote system administration of several Solaris systems Sun hardware, Sun Solaris, Veritas Netbackup, Big Brother network monitor January 2000 November 2002: Siemens Atea Herentals Siemens Atea is a part of Siemens ICN (Internet and Communication Networks). It is a research and development facility that develops telephone exchanges, GSM systems, DECT phones and communication software. ClearCase administration, support for bugtracking systems including ClearQuest an MR- Tool, Unix/Linux general support, security, database administration of Ingress and Sybase SQL-Anywhere, development of PERL scripts. Sun Solaris, Linux (SuSE, Red Hat, Mandrake, Debian), ClearCase, ClearQuest, VMWare, CVS, Ingress
6 Consulting assignments Job: Senior Linux architect / system engineer Start: End: - Truvo (Gouden gids) Truvo is the company behind the 'Gouden Gids' in Belgium, The 'Golden Pages' in Ireland and the Paginasamarelas in Portugal. It's a company growing from a traditional publishing model to an online company with a wide range of online offerings with the golden pages as flagship product. As part of the online operations team and as the Linux systems architect, I was responsible for designing, implementing and maintaining the infrastructure behind those sites. Technologies: RHEL, VMWare Vsphere, KVM, Nagios, Puppet, Bamboo, JIRA, Subversion, GlusterFS, OpenBSD, Load balancing, Tomcat, Java Job: Senior mission critical Linux System Engineer Start: End: Eurocontrol Eurocontrol regulates the air traffic of European flights. As part of the CFMU support team, I managed mission critical systems linked to air traffic control. Technologies: RHEL, VMWare Vsphere, Nagios, Groundwork, ITIL, Red Hat Satellite Job: Presales and project management Start: End: - in-house Since the start of Open-Future, I've been involved in the pre-sales proces with customers and the project management of the advanced solutions we are implementing. Projects include migrations from MS-Exchange to Zarafa groupware as well as high availability virtualized setups, scientific projects, provisioning en configuration management. Technologies: RHEL, Ubuntu, Xen, KVM, Puppet, Zabbix, Nagios, Drupal, Apache, PHP, Zarafa, Zimbra, SOGO, MySQL, MariaDB, PostgreSQL Job: Project management for community website development Start: End: Company: Vormingplus Vormingplus Antwerpen is developing a website to build an online community where people can register and trade goods and services with people in the same neighbourhood. Open-Future is building this project completely on top of a Drupal 6 stack. As the project leader, I analysed the requirements of the site together with the customer to build a complete set of initial requirements. With the requirements, I developed an implementation plan and I oversaw the development of the site that is due to go live in the spring of Technologies: Drupal, PHP Job: Screening of current system-management and -deployment infrastructure Start: End: Company: Colruyt Colruyt developed in-house scripts to manage their servers. With the expansion of their server park, these in-house scripts are no longer sufficient to manage their ever growing complex network. I did an on-site analysis of their current workflows with the goal of generating a complete report of
7 the current functionality and what the options are to move away from custom development to using standardized tools like Puppet to enable the company to efficiently manage their server park, even if it would grow exponentially. Technologies: RHEL, Puppet, Bcfg2, chef, kickstart, Red Hat Satellite, foreman, cobbler, RPM Job: Project leader Zarafa implementation Start: End: Company: Gemeente Nazareth After being involved in the pre-sales phase at the gemeente Nazareth, Open-Future did the implementation of the Zarafa Collaboration platform. I did the project management of the installation of the new server on virtual infrastructure (VMWare) and the migration of existing data in the Exchange database to the new groupware server. Technologies: RHEL5, VMWare, Zarafa, Postfix, ADS Job: Project leader Zarafa implementation Start: End: Company: SVK SVK is a company in the construction industry. As with many companies, they were running MS- Exchange as their groupware platform. I was involved very early in the pre-sales phase of this project and guided the customer to their eventual choice of the Zarafa Collaboration Platform. Following the decision for this new system, I did the project management of the installation of the new server on virtual infrastructure (Xen on Linux) and the migration of existing data in the Exchange database to the new groupware server. Technologies: RHEL5, KVM, Xen, Zarafa, Postfix, ADS Job: Project leader redundant virtualization setup Start: End: Company: ACEA ACEA implemented more and more services on top of Red Hat Linux. To make optimal use of the available hardware, we recommended to implementation of a Linux based virtualization platform. I was the architect and project manager of the virtualization setup based on Red Hat Enterprise Linux and KVM with front-end nodes and redundant storage nodes (using DRDB). Technologies: RHEL, KVM, DRDB, Zabbix, amanda, Samba Job: PHP Development Start: End: Company: LETS Vlaanderen LETS Vlaanderen commissioned funded extensions to my own Open Source project, elas. I developed version 2.0 of this online community building system which is completely revamped from version 1.4. From the changelog: * Multisite support, run multiple seperated elas instances on one installation * Hosting functions for billing and locking individual sites * Interlets functions including remote logins and automatic transactions * Moved most of the configuration to the database * Completely renewed V/A display screen * Introduced Human Interface Guidelines based on Gnome * Major code refactoring to reuse and verify as much functions as possible * Error handling for critical operations at the very least * Cache saldo with userinfo for speed * Use AJAX for a lot of rendering and user interaction
8 * Allow users to submit news items and queue them for admin approval * Moved to SHA1 algorithm for new password hashes * RSS feed for messages Technologies: PHP, MySQL, Drupal Job: System administration on SuSE Linux Start: End: Company: Johnson & Johnson J & J has teams around the world to support their critical Linux infrastructure, mostly deployed on VMWare clusters in datacenters in nearly each country where J & J has offices. Most of the mission critical software at J & J runs on top of SuSE, Red Hat Linux or HP-UX I was part of the Belgian administration team, located in Beerse. Though this was a local team, we deployed and provided support for systems all over the world. Technologies: SLES, RHEL, VMWare, LDAP, Centrify, OCFS, Sudo, HP-UX, ITIL Job: Zarafa implementation Start: End: Company: Borgerstein VZW I implemented a full groupware solution and Anti-spam gateway for Borgerstein VZW including the RHEL servers that power the groupware environment. The Antispam gateway is based on Spamtitan, a commercial product running on a FreeBSD operating system and totally manageable from our helpdesk. My main tasks where to implement the Zarafa Groupware solution (Exchange alternative running on Linux but using Outlook and MAPI protocol), installing and tuning the Spamtitan mail gateway. Technologies: Zarafa, Postfix, RHEL, SELinux, Spamtitan Job: Linux/Apache infrastucture setup Start: End: Company: Calibrate Calibrate creates webapplications for Digital television. These run on RedHat machines with Apache webservers set up behind Citrix loadbalancers. My technical skills where needed to optimize the loadbalancers, to verify the different stats and to fine-tune the installation. Technologies: RHEL 5, Apache, Loadbalancing Job: Linux/Apache infrastucture setup Start: End: Company: Siemens Services Siemens designed a high availability setup for FedICT to run government websites on. I helped implement and deploy the Virtual Linux servers that power this setup and the OCFS2 connection that allows load balancing while using the same backend storage. Technologies: RHEL 5, Netapp, OCFS2, Xen